package com.itheima.reggie.config;

import com.alibaba.fastjson.support.spring.messaging.MappingFastJsonMessageConverter;
import com.itheima.reggie.common.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.cbor.MappingJackson2CborHttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;

@Slf4j
@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {

    /**
     * 设置静态资源映射
     * @param registry
     */
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        //要是访问路径中带有backend就将访问路径映射到类路径的backend目录下
        log.info("开始进行静态资源映射...");
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
    }

    /**
     * 扩展springMvc的消息转换器，将我们自定义的jackson转换器设置在第一位
     * @param converters
     */
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        log.info("自定义消息转换器...");
        //创建消息转换器对象，需要先创建一个MappingJackson2CborHttpMessageConverter对象
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        //设置我们自己的对象转换器
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将我门自己设置的消息转换器加入到springMvc的消息转换器容器中，并且放在第一个
        converters.add(0,messageConverter);


    }


    }
